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PostPosted: Tue Nov 14, 2017 8:00 pm 
Dirt Disciple

Joined: Mon Oct 30, 2017 7:42 pm
Posts: 38
Location: Devon
So, I’ve taken delivery of a bike with a 90’s Campag Chainset. It has a 7mm Allen bolt in the centre of a ring with 2 small holes either side.
The 7mm Allen key only turns a short way, so i’m guessing a special tool may be required.
My experience of Campag is very limited over and above 80’s Record/Super Record, been using Shimano ever since


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PostPosted: Tue Nov 14, 2017 8:06 pm 
r.B.o.T.M. & P.o.T.M. Winner
r.B.o.T.M. & P.o.T.M. Winner
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Joined: Thu Jan 30, 2014 11:56 pm
Posts: 2572
Location: Cumbria land of beauty
Sounds like a self releasing bolt similar to shimano, keep undoing it and it will pull the crank off for you.


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PostPosted: Tue Nov 14, 2017 8:13 pm 
Dirt Disciple

Joined: Mon Oct 30, 2017 7:42 pm
Posts: 38
Location: Devon
Hmm, I
The Allen key will move maybe half a turn, the hex hole looks a bit rounded, so not sure I’m going to get anything moving before the Allen key just spins around inside the hex hole


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PostPosted: Tue Nov 14, 2017 8:22 pm 
r.B.o.T.M. & P.o.T.M. Winner
r.B.o.T.M. & P.o.T.M. Winner
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Joined: Thu Jan 30, 2014 11:56 pm
Posts: 2572
Location: Cumbria land of beauty
You could try an imperial size Allen key or a torx bit but to take off the cap use a pair of circlip pliers.


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PostPosted: Wed Nov 15, 2017 9:19 am 
Old School Grand Master

Joined: Tue Oct 09, 2007 1:55 pm
Posts: 8752
Location: New Forest, UK
And the cap has a left hand thread, unscrews clockwise. It's so it doesn't inadvertently unscrew when undoing the crank bolt.


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PostPosted: Wed Nov 15, 2017 12:48 pm 
Retro Guru

Joined: Wed Dec 10, 2008 9:19 am
Posts: 2224
Location: Sheffield, top city
kingbling wrote:
Sounds like a self releasing bolt similar to shimano, keep undoing it and it will pull the crank off for you.

this
keep turning the allen key anticlockwise - it will be stiff, but should draw the crank off the axle ... unless its seized on, then it becomes a project


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PostPosted: Wed Nov 15, 2017 2:24 pm 
Dirt Disciple

Joined: Mon Oct 30, 2017 7:42 pm
Posts: 38
Location: Devon
Thanks all, had a real workout getting the damned thing off.


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